搜索
( ) 1.A.breakfast B.ball C.lunch
( ) 2.A.pie B.run C.shout
( ) 3.A.apple B.pear C.me
( ) 4.A.pig B.duck C.look
( ) 5.A.eat B.drink C.sweet
( ) 6.A.pencil B.in C.rubber
( ) 7.A.pencil case B.shout C.open
（ ）8.A.desk B.nice C.beautiful
（ ）9.A.ten B.those C.these
（ ）10.A.you B.I C.meet
（ ）11.A.on B.under C.this
（ ）12.A.uncle B.aunt C.Bobby
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
